Antibiotics,
Journal Year:
2024,
Volume and Issue:
13(1), P. 76 - 76
Published: Jan. 13, 2024
Salmonella
is
a
major
foodborne
pathogen
and
leading
cause
of
gastroenteritis
in
humans
animals.
highly
pathogenic
encompasses
more
than
2600
characterized
serovars.
The
transmission
to
occurs
through
the
farm-to-fork
continuum
commonly
linked
consumption
animal-derived
food
products.
Among
these
sources,
poultry
products
are
primary
contributors,
followed
by
beef,
pork,
fish,
non-animal-derived
such
as
fruits
vegetables.
While
antibiotics
constitute
treatment
for
salmonellosis,
emergence
antibiotic
resistance
rise
multidrug-resistant
(MDR)
strains
have
highlighted
urgency
developing
alternatives.
Effective
infection
management
necessitates
comprehensive
understanding
pathogen’s
epidemiology
dynamics.
Therefore,
this
review
focuses
on
epidemiology,
sources
infection,
risk
factors,
dynamics,
host
range
serotypes.
This
also
investigates
disease
characteristics
observed
both
animals,
resistance,
pathogenesis,
potential
strategies
control
emphasizing
most
recent
antibiotic-alternative
approaches
control.
Poultry Science,
Journal Year:
2025,
Volume and Issue:
unknown, P. 105056 - 105056
Published: March 1, 2025
This
study
investigated
the
effects
of
astaxanthin
(AST)
supplementation
in
drinking
water
on
growth
performance,
intestinal
barrier
function,
and
cecal
microbiota
broilers
challenged
with
Salmonella
Enteritidis.
During
20-day
experiment,
two
hundred
forty
1-day-old
male
Arbor
Acres
birds
were
randomly
assigned
into
a
2
×
factorial
design
four
groups:
non-challenged
control
(CON),
an
S.
Enteritidis-challenged
group
(SA),
receiving
AST
treatment
(AST),
(SA+AST).
Each
comprised
six
replicate
groups,
groups
inoculated
Enteritidis
from
day
to
4.
The
results
indicated
that
infection
significantly
reduced
average
daily
feed
intake
(ADFI)
adversely
affected
gain
(ADG)
conversion
ratio
(FCR)
by
20.
improved
FCR.
While
did
not
affect
ileal
mucosa
antioxidation,
it
decreased
villus
height
height-to-crypt
depth
(VCR),
downregulated
mRNA
expression
ZO-1
Occludin.
However,
enhanced
antioxidant
capacity
(T-AOC),
increased
VCR
ileum,
notably
upregulated
MUC2
levels,
particularly
mitigating
adverse
crypt
depth.
Furthermore,
both
α-
β-diversity
microbiota.
Infection
was
associated
changes
at
phylum
level,
including
significant
increases
Alistipes,
unclassified_f__Lachnospiraceae,
bacteria
Clostridia
UCG-014
grouping,
alongside
notable
decreases
Bacteroides,
Akkermansia,
Blautia,
Butyricicoccus.
abundance
norank_f__Ruminococcaceae
Lachnoclostridium
unclassified_f__Lachnospiraceae
group.
In
conclusion,
could
improve
performance
health
Poultry Science,
Journal Year:
2024,
Volume and Issue:
103(9), P. 103880 - 103880
Published: May 17, 2024
Antibiotic
overuse
in
poultry
feeds
has
disastrous
implications;
consequently,
long-term
alternatives
must
be
developed.
As
a
result,
the
current
study
aims
to
assess
impact
of
Aspergillus
niger
filtrate
(ANF)
high
organic
acids
grown
on
agro-industrial
residue
faba
bean
(AIRFB)
quail
diet,
as
well
their
influence
bird
productivity,
digestion,
carcass
yield,
blood
chemistry,
and
intestinal
microbiota.
A
total
240
Japanese
quails
(aged
7
d)
were
used
this
study,
divided
equally
among
5
experimental
groups
with
48
each.
Group
1
(G1)
received
basal
diet
without
any
ANF,
group
2
(G2)
supplemented
0.5
mL
ANF/kg
3
(G3)
1.0
4
(G4)
1.5
(G5)
diet.
The
performance
parameters
monitored
at
3,
5,
wk.
Adding
ANF
increased
body
weight
wk,
gain
compared
control
fed
had
highest
feed
conversion
ratio
group.
addition
no
effect
carcass,
gizzard,
heart,
liver,
giblets,
or
dressing;
however,
it
did
lower
triglycerides,
low-density
lipoprotein,
very
lipoprotein
while
increasing
high-density
levels.
that
enhanced
immunological
indices
such
IgG,
IgM,
IgA,
lysozymes.
It
also
levels
superoxide
dismutase
antioxidant
contents,
catalase,
digestive
enzymes
protease,
amylase,
lipase.
However,
lowered
MDA
control.
been
demonstrated
gut
microbiota,
Escherichia
coli,
coliforms,
population
Salmonella
are
all
reduced
ANF-fed
quails.
Histological
examination
quails'
liver
sections
revealed
normal
hepatic
parenchyma,
typical
leaf-like
villi,
comparatively
short
frequently
free
lumina.
In
conclusion,
showed
improvements
performance,
enzymes,
indices,
immunity,
capacity
reduce
pathogenic
bacteria
after
consuming
ANF.
Antibiotics,
Journal Year:
2024,
Volume and Issue:
13(10), P. 959 - 959
Published: Oct. 11, 2024
Background:
Salmonella
is
an
important
zoonotic
pathogen,
of
which
poultry
products
are
reservoirs.
This
study
analyzed
the
prevalence,
antimicrobial
resistance,
and
characterization
from
broiler
laying
hen
sources
in
China.
Methods:
A
total
138
(12.27%)
strains
were
isolated
1125
samples
slaughterhouses
(20.66%,
44/213),
farms
(18.21%,
55/302),
(6.39%,
39/610).
Multiplex
PCR
was
used
to
identify
serotypes.
Antibiotic
susceptibility
testing
a
set
21
antibiotics
performed
all
screened
by
for
24
selected
resistance
genes
(ARGs).
In
addition,
out
whole-genome
sequencing
together
with
65
released
genomes
evaluate
phylogenetic
characteristics,
multilocus
sequence
typing
(MLST),
plasmid
carriage
percentages.
Results:
11
different
serotypes
identified,
dominance
S.
Enteritidis
(43/138,
31.16%),
Newport
(30/138,
21.74%),
Indiana
(19/138,
13.77%).
The
results
showed
that
(34.34%,
34/99)
(51.28%,
20/39)
dominant
isolates
broilers
hens,
respectively.
highest
sulfisoxazole
(SXZ,
100%),
nalidixic
acid
(NAL,
54.35%),
tetracycline
(TET,
47.83%),
streptomycin
(STR,
39.86%),
ampicillin
(AMP,
39.13%),
chloramphenicol
(CHL,
30.43%),
while
sensitive
both
tigacycline
(TIG)
colistin
(COL).
45.65%
(63/138)
multidrug-resistant
(MDR)
strains,
most
them
(61/63,
96.83%)
sources.
assays
revealed
63.77%
carrying
quinolone
gene
qnrD,
followed
gyrB
(58.70%)
trimethoprim
dfrA12
(52.17%).
Moreover,
thirty-four
ARGs,
eighty-nine
virulence
genes,
eight
replicons
detected
twenty-four
among
carry
ARGs
fewest
compared
other
Conclusions:
high
percentage
sources,
stressing
importance
continuous
monitoring
chain,
emergency
strategies
should
be
implemented
address
this
problem.
Poultry Science,
Journal Year:
2024,
Volume and Issue:
103(6), P. 103733 - 103733
Published: April 4, 2024
Salmonella
is
considered
one
of
the
most
common
foodborne
pathogens
worldwide.
The
annual
number
hospitalizations
and
deaths
related
to
zoonotic
salmonellosis,
which
transmitted
from
animals
humans
infects
poultry
meat,
expected
be
significant.
Hence,
primary
aims
this
research
were
isolate
characterize
species
obtained
an
integrated
company
identify
some
virulence,
antimicrobial
resistance,
with
a
specific
concern
about
colistin
resistance
genes.
A
total
635
samples
collected
various
sources
in
Jordan
screened
for
accompanying
their
virulence
Samples
parent
stock
house
drag
swabs,
broiler
farms,
premix,
cecum
at
slaughterhouse
level,
pre-chilling
post-chilling
stages,
final
product.
detected
3%
(6\200)
investigated
13.8%
(11/80)
cloacal
swabs
16.9%
(11/65)
boiler
farms
24.4%
(11/45)
16.4%
(9/55)
stage,
37.8%
(17/45)
stage
53.3%
(24/45)
product
stage.
No
isolates
feed
mills
(0/20),
parents'
premix
(0/40),
or
hatcheries
(0/40).
resistant
ciprofloxacin
(91.0%),
nalidixic
acid
(86.5%),
doxycycline
(83.1%),
tetracycline
sulphamethoxazole-trimethoprim
(79.8%)
ampicillin
(76.4%).
Serotyping
shows
that
S.
Infantis
was
predominant
serovar,
56.2%.
Based
on
minimum
inhibitory
concentration
(MIC)
test,
39.3%
(35/89)
colistin;
however,
no
mcr
genes
detected.
Among
antimicrobial-resistant
genes,
blaTEM
prevalent
(88.8%).
Furthermore,
spvC,
ompA,
ompF
showed
highest
percentages
(97.8%,
97.8%,
96.6%,
respectively).
In
conclusion,
found
stages
company.
serotype.
Cross-contamination
between
production
highlights
importance
good
hygiene
practices.
presence
patterns
present
significant
challenges
public
health.
Italian Journal of Food Safety,
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 4, 2024
Bacterial
pathogenic
strains
are
as
adaptable
Salmonella
and
cause
diverse
intestinal
extraintestinal
diseases
in
humans
other
mammals
worldwide.
Red
meat
its
products
important
hosts
for
many
zoonotic
diseases.
This
work
was
designed
to
investigate
the
frequency,
serotypes,
antimicrobial
resistance
profile
of
isolated
spp.
red
(cattle,
sheep,
goats)
sold
Dhamar
Governorate,
Yemen.
A
total
250
samples
were
collected
from
retail
seller
market
between
July
December
2022.
All
transported
immediately
laboratory,
subcultured
on
selective
enrichment
agar,
identified
by
serotyping
susceptibility
tests
via
disk
diffusion
methods.
The
results
indicated
26
positive
out
(10.4%).
Notably,
isolates
belong
ten
various
serotypes:
S.
Typhimurium
19.2%,
Anatum
15.4%,
Newport
11.5%,
Enteritidis
Muenchen
Infantis
7.7%,
Montevideo
Dublin
Senftenberg
3.9%,
Arizona
3.9%.
antibiotic
revealed
that
57.5%,
53.9%,
53.9%
resistant
erythromycin,
tetracycline,
norfloxacin,
respectively.
among
suggests
a
significant
threat
health,
which
will
turn
require
an
active
safety
measure
response.
On
hand,
seasonal
variations
“August
July”
found
be
associated
with
increased
frequency
isolation.
